Irena Pervil
BI Analyst
Summary
BI Analyst with over 4 years of comprehensive experience in Power BI, SQL, and Tableau, specializing in data analysis, data modeling, visualization, and reporting. Proficient in delivering business insights and metrics for corporate decision-making. A fast learner with a strong commitment to continuous professional growth
Overview
4
4
years of professional experience
3
3
years of post-secondary education
Work History
BI Analyst
ESPRIT
11.2023 - Current
- Developing intuitive and insightful automated Power BI reporting platform (PBI reports, Apps, DAX, data models, Power Automate) based on stakeholder requirements, including 2 new Apps and 15 new dashboards, leading to 20% increase in user engagement
- Automated and transformed manual reporting processes into Power BI reports for Retail and HR departments, resulting in 80% reduction in report generation time.
- Increasing performance and maintaining existing Power BI reports, leading to 25% reduction in report loading time
- Supporting internal stakeholders with ad-hoc product and financial analysis to answer business questions
- Automating data collection processes, integrating data from various sources, including SAP HANA, to streamline workflows and improve data accuracy.
Business Analyst
KOŠIK.CZ
09.2022 - 10.2023
- Developed data-driven solutions using Tableau: Analyzed operational and date time series data to monitor KPIs, identify areas for improvement, and generate actionable insights
- Built 25 automated Tableau dashboards for operations team, ensuring timely, accurate, and comprehensive data visualization
- Collaborated with vendors to run and analyze over 10 simulation projects, leading to 4% increase in Perfect delivery and 5% reduction in cost per order
- Supported internal stakeholders with preparing ad-hoc reports, providing insights to support decision-making
- Data quality assurance and verification: Tested and verified data accuracy to ensure high-quality outputs for stakeholders.
BI Analyst
INTERNATIONAL SOS
01.2020 - 08.2022
- Developed and maintained Power BI reporting platform from various sources to provide E2E clients' key metrics and utilization measures
- Managed access to data for 200+ active users using Salesforce 'Roles'
- Prepared ad-hoc reports based on identified and collected requirements from stakeholders incl
- Account and Senior managers and ticket system ServiceNow
- Streamlined reporting processes by automating ad-hoc reports using Power BI and Salesforce, enhancing efficiency and reducing number of requests by 40%
- Proactively identified and developed opportunities for enhancement within reporting platform, demonstrating keen eye for continuous improvement and optimization, and troubleshooted data errors in cooperation with IT/technical teams
- Responsible for monthly data collection from different data sources and processing.
Education
Bc. Production and Economics in Engineering -
Faculty of Mechanical Engineering, Czech Technical University in Prague
Czechia 10.2012 - 02.2016
Skills
MS POWER BI:
DAX
Apps
Data modelling
Power Query
Visualization
MS Office incl Advanced Excel
SQL
Python
MS AZURE
Snowflake / dBeaver / ETL
Salesforce/Jira/Confluence/ServiceNow
Courses/ Certificates
- Microsoft PL-300 Data Analyst
- Microsoft Power BI - Advanced - GoPas
- SQL 2 - OKSystem
- Master Tableau in Data Science - Udemy
- Tableau A-Z: Hands-On Tableau Training for Data Science - Udemy
Languages
English
Advanced
C1
Czech
Proficient
C2
Timeline
BI Analyst
ESPRIT
11.2023 - Current
Business Analyst
KOŠIK.CZ
09.2022 - 10.2023
BI Analyst
INTERNATIONAL SOS
01.2020 - 08.2022
Bc. Production and Economics in Engineering -
Faculty of Mechanical Engineering, Czech Technical University in Prague
10.2012 - 02.2016